Merge branch 'dfsg-orig' into dfsg-debian

[tar] / gnu / regcomp.c

diff --git a/gnu/regcomp.c b/gnu/regcomp.c
index 69f5c94d71930148842d625d18c73bd0bf6baa26..fd9272f28f67d38be5b620f9ce0db07cdc7550ff 100644 (file)
--- a/gnu/regcomp.c
+++ b/gnu/regcomp.c
@@ -2624,11 +2624,17 @@ parse_dup_op (bin_tree_t *elem, re_string_t *regexp, re_dfa_t *dfa,
 static reg_errcode_t
 internal_function
 # ifdef RE_ENABLE_I18N
-build_range_exp (bitset_t sbcset, re_charset_t *mbcset, Idx *range_alloc,
-                bracket_elem_t *start_elem, bracket_elem_t *end_elem)
+build_range_exp (const reg_syntax_t syntax,
+                 bitset_t sbcset,
+                 re_charset_t *mbcset,
+                 Idx *range_alloc,
+                 const bracket_elem_t *start_elem,
+                 const bracket_elem_t *end_elem)
 # else /* not RE_ENABLE_I18N */
-build_range_exp (bitset_t sbcset, bracket_elem_t *start_elem,
-                bracket_elem_t *end_elem)
+build_range_exp (const reg_syntax_t syntax,
+                 bitset_t sbcset,
+                 const bracket_elem_t *start_elem,
+                 const bracket_elem_t *end_elem)
 # endif /* not RE_ENABLE_I18N */
 {
   unsigned int start_ch, end_ch;
@@ -2667,7 +2673,9 @@ build_range_exp (bitset_t sbcset, bracket_elem_t *start_elem,
       return REG_ECOLLATE;
     cmp_buf[0] = start_wc;
     cmp_buf[4] = end_wc;
-    if (wcscoll (cmp_buf, cmp_buf + 4) > 0)
+
+    if (BE ((syntax & RE_NO_EMPTY_RANGES)
+            && wcscoll (cmp_buf, cmp_buf + 4) > 0, 0))
       return REG_ERANGE;
 
     /* Got valid collation sequence values, add them as a new entry.
@@ -3170,11 +3178,11 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token,
                                  &start_elem, &end_elem);
 #else
 # ifdef RE_ENABLE_I18N
-         *err = build_range_exp (sbcset,
+         *err = build_range_exp (syntax, sbcset,
                                  dfa->mb_cur_max > 1 ? mbcset : NULL,
                                  &range_alloc, &start_elem, &end_elem);
 # else
-         *err = build_range_exp (sbcset, &start_elem, &end_elem);
+         *err = build_range_exp (syntax, sbcset, &start_elem, &end_elem);
 # endif
 #endif /* RE_ENABLE_I18N */
          if (BE (*err != REG_NOERROR, 0))